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Cardiol."],"abstract":"<jats:p>Resumo O di\u00e2metro da via de sa\u00edda do ventr\u00edculo esquerdo (DVSVE) \u00e9 essencial para estimar o volume sist\u00f3lico do ventr\u00edculo esquerdo e a gravidade da estenose a\u00f3rtica, mas limita\u00e7\u00f5es t\u00e9cnicas podem afetar sua precis\u00e3o. Um DVSVE predito pode superar esses problemas, embora ainda n\u00e3o tenha sido validado em grandes popula\u00e7\u00f5es. Estudamos os participantes da amostra aleat\u00f3ria representativa com idade \u2265 60 anos do estudo Elsa-Brasil que realizaram ecocardiograma (n=3.267), divididos em um subgrupo de deriva\u00e7\u00e3o (70%) e um subgrupo de valida\u00e7\u00e3o (30%). Na coorte de deriva\u00e7\u00e3o, foram identificados determinantes independentes do DVSVE e derivada uma equa\u00e7\u00e3o de regress\u00e3o. Na coorte de valida\u00e7\u00e3o, o desempenho do VSVEELSA foi avaliado e comparado com f\u00f3rmulas publicadas anteriormente. Na nossa amostra de deriva\u00e7\u00e3o (n = 1.822; 58,9 \u00b1 9,5 anos; 52% mulheres), o DVSVE m\u00e9dio medido foi de 19,5 \u00b1 2,5 mm. Os preditores mais fortes do DVSVE foram sexo, altura, di\u00e2metro da raiz da aorta (AoDiam) e di\u00e2metro diast\u00f3lico final do ventr\u00edculo esquerdo (DDVE), resultando na equa\u00e7\u00e3o VSVEELSA = 0,03 + [0,59 x sexo masculino] + [0,04 x altura] + [0,22 x AoDiam] + [0,13 x DDVE]. Na amostra de valida\u00e7\u00e3o (n = 739), o VSVEELSA apresentou alta correla\u00e7\u00e3o (r = 0,63) com o DVSVE medido, com concord\u00e2ncia semelhante \u00e0 do VSVEPestelli (r = 0,61), por\u00e9m inferior \u00e0 do VSVESC (r = 0,47). Essas diferen\u00e7as se refletem em diferen\u00e7as relevantes nos volumes sist\u00f3licos. O VSVEELSA apresentou bom desempenho em uma popula\u00e7\u00e3o adulta em geral e pode ser usado como alternativa quando a medi\u00e7\u00e3o ecocardiogr\u00e1fica direta do DVSVE n\u00e3o for vi\u00e1vel.<\/jats:p>","DOI":"10.36660\/abc.20260036","type":"journal-article","created":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T19:10:51Z","timestamp":1791918651000},"source":"Crossref","is-referenced-by-count":0,"title":["Estimativa do Di\u00e2metro da Via de Sa\u00edda do Ventr\u00edculo Esquerdo: Proposta de uma Equa\u00e7\u00e3o para Uso Cl\u00ednico em Adultos a Partir dos Dados do Estudo ELSA-Brasil"],"prefix":"10.36660","volume":"123","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7938-1640","authenticated-orcid":false,"given":"Giulia Bevilacqua","family":"Schmitz","sequence":"first","affiliation":[{"name":"Universidade Federal do Rio Grande do Sul","place":["Porto Alegre, RS, Brasil"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7491-2630","authenticated-orcid":false,"given":"Bruce Bartholow","family":"Duncan","sequence":"additional","affiliation":[{"name":"Universidade Federal do Rio Grande do Sul","place":["Porto Alegre, RS, Brasil"]},{"name":"Universidade Federal do Rio Grande do Sul","place":["Porto Alegre, RS, Brasil"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2914-4406","authenticated-orcid":false,"given":"Murilo","family":"Foppa","sequence":"additional","affiliation":[{"name":"Universidade Federal do Rio Grande do Sul","place":["Porto Alegre, RS, Brasil"]},{"name":"Hospital de Cl\u00ednicas de Porto Alegre","place":["Porto Alegre, RS, Brasil"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2493-0547","authenticated-orcid":false,"given":"Angela Barreto Santiago","family":"Santos","sequence":"additional","affiliation":[{"name":"Universidade Federal do Rio Grande do Sul","place":["Porto Alegre, RS, Brasil"]},{"name":"Hospital de Cl\u00ednicas de Porto Alegre","place":["Porto Alegre, RS, Brasil"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"22636","published-online":{"date-parts":[[2026]]},"reference":[{"issue":"1","key":"ref1","doi-asserted-by":"crossref","DOI":"10.1186\/s12947-020-00219-w","article-title":"A Novel Method of Calculating Stroke Volume Using Point-of-Care Echocardiography","volume":"18","author":"Aligholizadeh E","year":"2020","journal-title":"Cardiovasc Ultrasound"},{"issue":"2","key":"ref2","doi-asserted-by":"crossref","first-page":"379","DOI":"10.1097\/TA.0000000000002304","article-title":"Echo is a Good, Not Perfect, Measure of Cardiac Output in Critically Ill Surgical Patients","volume":"87","author":"Olivieri PP","year":"2019","journal-title":"J Trauma Acute Care 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